Jaeger Precipitation Climatology: Global Gridded Monthly Means

1931 to 1960 precipitation data over continents and 1955 to 1965 over oceans. The National Aeronautics and Space Administration produced this gridded climatology by estimating values from climatic atlases and interpolating ocean rainfall frequencies from the US Marine Climatic Atlas. It provides mean monthly global precipitation values on a 2.5 x 5.0 degree grid.

Use Cases

• Calculate seasonal precipitation variations based on gridded monthly means.
• Analyze hemispheric precipitation differences based on global grid coverage.
• Construct historical climate baselines based on data spanning 1931-1960 and 1955-1965.
• Study meridional zone precipitation patterns based on global grid point values.

Strengths

• Gridded global coverage at 2.5 x 5.0 degree resolution.
• Data spans 1931 to 1960 over continents and 1955 to 1965 over oceans.
• Derived from up-to-date climatic atlases and the US Marine Climatic Atlas.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The standard period 1931-1960 was not possible for all continental regions.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Grid point values were obtained as eye estimates from isopleth maps prepared from climatic atlases; ocean data used Moller's method on frequencies from the US Marine Climatic Atlas.

Time Range

1931-1960 (continents), 1955-1965 (oceans)

Geography

Global